1
MHT CET 2021 20th September Morning Shift
MCQ (Single Correct Answer)
+2
-0

If $$h(x)=\sqrt{4 f(x)+3 g(x)}, f(1)=4, g(1)=3, f^{\prime}(1)=3, g^{\prime}(1)=4$$, then $$h^{\prime}(1)=$$

A
$$\frac{5}{12}$$
B
$$\frac{12}{5}$$
C
$$\frac{-5}{12}$$
D
$$\frac{-12}{7}$$
2
MHT CET 2021 20th September Morning Shift
MCQ (Single Correct Answer)
+2
-0

If $$x=a \cos \theta, y=b \sin \theta$$, then $$\left[\frac{d^2 y}{d x^2}\right]_{\theta=\frac{\pi}{4}}=$$

A
$$2\left(\frac{a^2}{b}\right)$$
B
$$\sqrt{2}\left(\frac{\mathrm{a}^2}{\mathrm{~b}}\right)$$
C
$$-2 \sqrt{2}\left(\frac{b}{a^2}\right)$$
D
$$2 \sqrt{2}\left(\frac{\mathrm{b}}{\mathrm{a}^2}\right)$$
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